[dathinab]

that should only happen if either

- you haven't setup auto save/auto sync

- multiple people editing the documents

- you frequently have no Internet and the application closed when you re-gain Internet or similar

if only a single person edits the same document at a time and you always sync changes when they happen that should be a non issue

[bad_username]

You guessed one of the reasons correctly - I work offline (deliberately or accidentally) fairly regularly.